Cutting and stripping device for spool adhesive plasters.



No. 879,223. PATENTED FEB. 18, 1908.

W. J. WALSH. CUTTING AND STRIPPING DEVICE FOR SPOOL ADHESIVE PLASTERS.

APPLICATION FILED BEPT.11. 1907.

Wm, 55M 77 U ITED STATES PATENT'OFFICE.

WILLIAM J. WALSH, OF BOSTON, MASSACHUSETTS.

To all whom it may concern."

Be it known that '1, WILLIAM J. WALSH, acitizen of the United States, and resident of Boston, county of Suffolk, State of Massachusetts, have invented an Improvement in Outtin and Strpping'Devices for Spool Adhesive llasters, 0 which the following description, in connection with the accompanying drawing, is a specification, like y letters on the drawing representing like parts.

up in roll form on a spool,- from which it is un-' wound and cut with scissors or,a knife when used, as it is practically impossible to sever the laster by tearing it across.

T e use of scissors or a knife isinconven- 5 ient, as at times it is of great moment to use the plaster when a cutting implement is not at hand.

My present invention provides a simple de-v vice, mounted permanently u on the spool, by means of which the edge 0 the plaster is cut when desired, the severance of the plaster being then completed readily by tearing it across. I have also so arranged the cuttln r device that the plaster may be strippe lon itudinally when required.

'l he various novel features of my invention will be fully described in the subjoined speci fication and particularly pointed out in the following claims.

40 Figure 1 is a front elevation of a spool adhesive plaster with one embodiment of my invention applied thereto; Fig. 2 is a left hand end elevatlon thereof; Fig. 3 is a perspective view showing the cutting device in position to cut the edge of the plaster; Fig. 4 1s a pers ective view of the spool, with the cutting evice in normal, inoperative position. Fig. 5 is a much enlarged detail in perspective of the cutting device and the ad acent end of the carrier.

The spool may be of any suitable or usual construction, com rising circular heads a, b, connected by a cy indrical core 0 upon WlllCh the web of material, such as adhesive surgical plaster, is mounted'in roll form at P.

Specification of Letter- Patent. Applioatiqn filed September 11 1907; Serial Ho. 392.318

, CUTTING AND S'IBIPP ING DEVICE FOR SPOOL ADEISIVEFLAS'l-ERS.

Patented Feb. 18, 1908.

In ractice the heads are usually made of thin s eet metal, and are rotatable relatively to the core, facilitating the drawing off of the plaster when required.

In the presentembodim ent of m invention 0 I form an aperture a in one of the spool heads, near its eriphery, and upon the exterior of the said head I mount a resilient or spring arm 1., constituting a blade-carrier.

One end of the blade-carrier is fixedly se- 5 cured to the head in any suitable manner, as by strikin up 0 posite ears 2 from the head, inserting t e en of the arm 1 between them, and then forcing them down thereupon, prefeiably also soldering said parts together.

The arm or blade-carrier is extended diametrically across the head a and its free end is herein shown as bent at 3 and extended through the aperture a, to form a blade and preferably its opposite edges are sharpened, 75. as at 4, see Fig. 5. The blade is tapered, and its extremity turned out, as at 5, transversely to the blade, to form a rather pointed prong or stripper, for a pu ose to be described. 3 By ma ing the blade-carrier of spring steel the blade is conveniently made integral therewith, so that its cutting edges can bereadily sharpened.

The bladeecarrier is slightly bent outward so that normall its resiliency throws it outward into full ine position Fig. 1, and as shownin Fig. 4, retracting the blade 3 so that it's rong or stripper 5 is held against the inner sidb of the head a, and at such time the plaster can be unwound from the spool without any hindrance.

When the desired length is drawn off the user presses the blade-carrier down upon the head a, thereby moving the blade 3 inward through the a erture a into operative position, see dotted lines Fig. 1 andfull lines Fig. 3.

The adjacent edge 17, Fig. 3, of the plaster is now drawn firmly across the cutting edge 4 of the blade and a transverse cut is made in the plaster at its edge.

By a sharp lpull the plaster can then be readily torn a the way across, from the starting out made as described, and the desired length is severed from the plaster, the blade being returned to inoperative position as soon as pressure is removed from the blade-carrier. I

When the latter is pressed against the head it also bears against the end of the core c and holds the latter from rotation when the edge ofthe plaster is drawn across the cutting blade.

If it is desired to strip the plaster longitudinally it is drawn down upon the prong or stripper 5 and pulled in the direction of its length, the thin edge of the stripper acting to cut the plaster longitudinally, it being understood that when the stri per is used the blade-carrier will be presse against the spool head, as in Fig. 3.- The device obviates the use of scissors or a knife, and is always ready for use, while at the same time it offers no obstruction to drawing the plaster off the spool for-any desired length.

As best shown in Fig. 5 the edges of the stripper 5 are set in somewhat from the edges 4 of the blade 3, in order that when the plaster is drawn across an edge 4' to make-the transverse cut the stripper will not interfere with such operation. v

While the resiliency of the blade-carrier 1 normally holds the stripper 5 againstthe inner side of the spool-head a I prefer to make a slight indentation or recess a in the latter, see 'the broken out portion of Fig. 1, in order that normally the stripper will lie substantially flush with the inner side of said head,

to thereby obviate any chance of the plaster engaging it should it be desired to windonto the spool an unused portion of the plaster.

Having fully described my invention, what I claim as new and desire to secure by Let; ters Patent is 1. As an article of manufacture, a spool comprising a cylindrical core and connected circular heads one of which has an aperture near its periphery, a plaster roll mounted on the core, a cutting blade movable through the aperture in the spool head, and a resilient blade-carrier fixedly secured to the exterior of the apertured' head of the spool, pressure upon the carrier forcing the blade inward to cut the edge of the plaster ,when drawn across the blade 2. As an article of manufacture, a spool having connected heads one of which is apertured near its periphery, a resilient bladecarrier fixedly secured at one end to the exterior of said apertured head and having its free end opposite the aperture, a blade mounted on the free end of the blade-carrier and extended into the aperture, and a plaster roll mounted between the heads of the spool, the blade-carrier normallyretracting the blade, pressure upon said blade-carrier osi- .tioningthe blade at the inner side of the ead to cut the edge of the plaster when drawn across it.

3. As an article ofmanufacture, a spool having connected heads one of which is apertured near its periphery, a plaster roll mounted on the spool between its heads, and a manually controlled blade movable through the aperture into position at the inner side of the head to cut the edge of. the plaster when transversely or to strip'the plaster longitudinally, as desired.

5. As an article of manufacture/ a spool having connected heads one of which is apertured near its periphery, a plaster roll mounted on the spool between its heads, a resilient.

arm fixedly secured at one end on the exterior of the apertured head and having its free end bent to pass through the aperture and sharpened to form a blade, and an out-turned stripper on the blade transverse thereto, the arm normally maintaining the blade retracted and the stripper adjacent the inner side of the head.

6. As an article of manufacture, a spool comprising connected heads, a roll of adhesive plaster mounted thereon, and manually controlled means mounted on one of the heads to form a transverse cut in the edge of the plaster, whereby the latter may be read ily severed into desired. lengths.

7. As an article of manufacture, a spool comprising connected heads, a web. of material in roll form mounted on the spool between its heads, and a manually movable blade mounted on one of the heads and adapted to be moved into position to transversely cut the edge of the web when drawn across the blade.

In testimony whereof, I have signed my name to this specification, in the presence of two subscribing witnesses.

WILLIAM J. WALSH.

Witnesses:

JOHN C. EDWARDS, MARGARET A. DUNN. 

